/* Decision Tree Learning Archive — research portal */
:root {
  color-scheme: light;
  --navy: #10284b;
  --navy-2: #1e3d6f;
  --blue: #2878c8;
  --blue-bright: #4292d8;
  --pale: #e8f0fa;
  --pale-2: #f0f5fd;
  --paper: #f6f8fb;
  --surface: #ffffff;
  --surface-2: #f6f8fb;
  --ink: #1a2332;
  --ink-2: #3a4658;
  --muted: #586579;
  --rule: #d8dee8;
  --rule-strong: #c3cdda;
  --accent: #2878c8;
  --accent-soft: #e8f0fa;
  --accent-mid: #1a6bbf;
  --green: #1f6b56;
  --good: #1d6b3a;
  --bad: #9b2c2c;
  --warn-bg: #f4efe2;
  --warn-ink: #6a4e12;
  --b1: #2a78d6; --b2: #d4652f; --b3: #1baf7a; --b4: #c48a00;
  --b5: #c45b86; --b6: #2f7d32; --b7: #5b4db8;
  --b-idle: #8b97a8; --b-off: #5c6b7e;
  --sans: "IBM Plex Sans", system-ui, -apple-system, "Segoe UI", sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, "SF Mono", Menlo, Consolas, monospace;
  --serif: var(--sans);
  --nav-width: 300px;
  --header-h: 60px;
  --page-max: 760px;
  --page-wide: 1120px;
  --radius: 8px;
  --shadow: 0 8px 28px rgba(20, 43, 74, 0.12);
  --space: 8px;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    color-scheme: dark;
    --navy: #0c1828;
    --navy-2: #16304f;
    --paper: #0e1622;
    --surface: #152033;
    --surface-2: #1c2b42;
    --ink: #e7eef6;
    --ink-2: #c5d2e2;
    --muted: #93a4ba;
    --rule: #2a3c56;
    --rule-strong: #3d5270;
    --accent: #8eb6e4;
    --accent-soft: #1a304c;
    --accent-mid: #b7d2f2;
    --pale: #1a304c;
    --pale-2: #15283f;
    --blue: #8eb6e4;
    --blue-bright: #6aa0d8;
    --green: #8dccb8;
    --good: #8dcc9a; --bad: #f0a0a0; --warn-bg: #3a321c; --warn-ink: #f0d9a0;
    --b-idle: #6d7c90; --b-off: #a8b4c4;
  }
}
:root[data-theme="dark"] {
  color-scheme: dark;
  --navy: #0c1828;
  --navy-2: #16304f;
  --paper: #0e1622;
  --surface: #152033;
  --surface-2: #1c2b42;
  --ink: #e7eef6;
  --ink-2: #c5d2e2;
  --muted: #93a4ba;
  --rule: #2a3c56;
  --rule-strong: #3d5270;
  --accent: #8eb6e4;
  --accent-soft: #1a304c;
  --accent-mid: #b7d2f2;
  --pale: #1a304c;
  --pale-2: #15283f;
  --blue: #8eb6e4;
  --blue-bright: #6aa0d8;
  --green: #8dccb8;
  --good: #8dcc9a; --bad: #f0a0a0; --warn-bg: #3a321c; --warn-ink: #f0d9a0;
  --b-idle: #6d7c90; --b-off: #a8b4c4;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.6;
}
body.nav-open { overflow: hidden; }
a { color: var(--accent); text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:hover { color: var(--accent-mid); }
::selection { background: var(--pale); color: var(--ink); }
:focus-visible { outline: 2px solid var(--blue-bright); outline-offset: 2px; }
.sr-only {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0;
}

/* ---------- masthead ---------- */
.masthead {
  position: sticky; top: 0; z-index: 100;
  background: var(--navy);
  color: #f4f7fb;
  height: var(--header-h);
}
.masthead-inner {
  max-width: var(--page-wide); margin: 0 auto;
  padding: 0 20px;
  height: 100%;
  display: flex; align-items: center; gap: 18px;
}
.wordmark {
  display: inline-flex; align-items: center; gap: 10px;
  font-weight: 600; font-size: 15px; letter-spacing: -0.01em;
  color: #fff; text-decoration: none; min-width: 0;
}
.wordmark:hover { color: #fff; }
.wordmark-text { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.mark { flex-shrink: 0; display: block; }
.top-nav { display: flex; align-items: center; gap: 2px; min-width: 0; }
.top-drop { position: relative; }
.top-menu {
  position: absolute; top: calc(100% - 2px); left: 0; min-width: 220px;
  padding: 6px; background: #fff; color: var(--ink);
  border: 1px solid var(--rule); border-radius: 8px;
  box-shadow: 0 10px 28px rgba(16, 32, 58, 0.16);
  display: flex; flex-direction: column;
  opacity: 0; visibility: hidden; pointer-events: none;
}
.top-drop:hover .top-menu,
.top-drop:focus-within .top-menu { opacity: 1; visibility: visible; pointer-events: auto; }
.top-menu a {
  color: var(--ink); text-decoration: none; font-size: 13.5px; font-weight: 500;
  padding: 8px 10px; border-radius: 6px;
}
.top-menu a:hover, .top-menu a.active { background: var(--pale); color: var(--navy); text-decoration: none; }
.top-link {
  color: #d5e3f4; text-decoration: none; font-size: 13.5px; font-weight: 500;
  padding: 6px 8px; border-radius: 6px; white-space: nowrap;
}
.top-link:hover { color: #fff; background: rgba(255, 255, 255, 0.08); text-decoration: none; }
.top-link.active { color: #10284b; background: #e8f0fa; }
.hdr-search { margin-left: auto; flex: 0 1 220px; }
.hdr-search input {
  width: 100%; min-width: 0;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.22);
  color: #fff; border-radius: 6px; padding: 7px 10px;
  font-family: var(--sans); font-size: 13.5px;
}
.hdr-search input::placeholder { color: #c5d4e8; }
.hdr-search input:focus { outline: 2px solid #fff; outline-offset: 1px; background: rgba(255, 255, 255, 0.16); }
.theme-btn, .menu-btn {
  background: transparent; color: #e7eef8;
  border: 1px solid rgba(255, 255, 255, 0.28);
  border-radius: 6px; cursor: pointer;
  font-family: var(--sans); font-size: 13px; font-weight: 500;
  padding: 6px 10px; flex-shrink: 0;
}
.theme-btn:hover, .menu-btn:hover { background: rgba(255, 255, 255, 0.08); color: #fff; }
.menu-btn { display: inline-flex; align-items: center; gap: 8px; }
.burger-icon { display: flex; flex-direction: column; gap: 4px; width: 16px; }
.burger-icon span {
  display: block; height: 1.5px; background: currentColor; border-radius: 1px;
  transition: transform 0.18s ease, opacity 0.18s ease;
}
.menu-btn[aria-expanded="true"] .burger-icon span:nth-child(1) { transform: translateY(5.5px) rotate(45deg); }
.menu-btn[aria-expanded="true"] .burger-icon span:nth-child(2) { opacity: 0; }
.menu-btn[aria-expanded="true"] .burger-icon span:nth-child(3) { transform: translateY(-5.5px) rotate(-45deg); }

/* ---------- nav drawer ---------- */
.nav-overlay {
  position: fixed; inset: 0; z-index: 98;
  background: rgba(12, 24, 40, 0.45);
  opacity: 0; pointer-events: none;
  transition: opacity 0.18s ease;
}
.nav-overlay.open { opacity: 1; pointer-events: auto; }
.nav-drawer {
  position: fixed; top: 0; right: 0; left: auto;
  width: min(var(--nav-width), 92vw);
  height: 100vh;
  background: var(--surface);
  color: var(--ink);
  z-index: 120;
  overflow-y: auto;
  transform: translateX(100%);
  transition: transform 0.2s ease;
  box-shadow: var(--shadow);
  padding-top: 12px;
}
.nav-drawer.open { transform: translateX(0); }
.nav-drawer-inner { padding: 8px 0 40px; }
.nav-group { border-bottom: 1px solid var(--rule); }
.nav-group > summary {
  list-style: none; cursor: pointer;
  padding: 14px 20px 8px;
  font-size: 11px; font-weight: 600; letter-spacing: 0.08em;
  text-transform: uppercase; color: var(--muted);
}
.nav-group > summary::-webkit-details-marker { display: none; }
.nav-group > summary::after { content: "+"; float: right; font-family: var(--mono); }
.nav-group[open] > summary::after { content: "−"; }
.nav-link {
  display: flex; align-items: baseline; gap: 10px;
  padding: 9px 20px;
  font-size: 14.5px; color: var(--ink-2); text-decoration: none;
}
.nav-link:hover { background: var(--pale-2); color: var(--ink); text-decoration: none; }
.nav-link.active { color: var(--blue); font-weight: 600; background: var(--accent-soft); }
.nav-link.sub { font-size: 13.5px; color: var(--muted); }
.nav-footer {
  margin: 20px 20px 0; padding-top: 14px;
  font-size: 12px; color: var(--muted); line-height: 1.5;
}

/* ---------- page ---------- */
main {
  max-width: var(--page-wide);
  margin: 0 auto;
  padding: 28px 24px 88px;
  min-width: 0;
}
.page { max-width: var(--page-max); }
.page.wide { max-width: none; }

.kicker {
  font-size: 12px; font-weight: 600; letter-spacing: 0.08em;
  text-transform: uppercase; color: var(--blue); margin: 0 0 8px;
}
h1 { font-size: 1.85rem; line-height: 1.2; font-weight: 600; letter-spacing: -0.02em; margin: 0 0 12px; }
h2 { font-size: 1.25rem; line-height: 1.3; font-weight: 600; margin: 32px 0 10px; }
h3 { font-size: 1.05rem; font-weight: 600; margin: 24px 0 8px; }
h4 { font-size: 12px; letter-spacing: 0.06em; text-transform: uppercase; color: var(--ink-2); margin: 20px 0 8px; font-weight: 600; }
p { margin: 0 0 14px; max-width: 68ch; }
.lead { font-size: 1.05rem; line-height: 1.55; color: var(--ink-2); max-width: 62ch; margin-bottom: 18px; }
.small, .meta { font-size: 12.5px; color: var(--muted); }
code, .mono { font-family: var(--mono); font-size: 0.86em; }
.src { font-family: var(--mono); font-size: 11px; color: var(--muted); word-break: break-all; }
.src::before { content: "source  "; letter-spacing: 0.06em; text-transform: uppercase; font-size: 9.5px; }
a.more { font-size: 13.5px; font-weight: 500; white-space: nowrap; text-decoration: none; }
a.more:hover { text-decoration: underline; }

/* ---------- homepage ---------- */
html[data-theme="light"] body:has(.home),
html:not([data-theme]) body:has(.home) { background: #ffffff; }
@media (prefers-color-scheme: dark) {
  html:not([data-theme="light"]) body:has(.home) { background: var(--paper); }
}
main:has(.home) { max-width: 1160px; }
.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.22fr) minmax(340px, 0.9fr);
  gap: 40px 48px;
  align-items: center;
  padding: 18px 0 0;
}
.hero-copy { min-width: 0; container-type: inline-size; }
.hero-line { display: inline; }
@media (min-width: 981px) {
  .hero h1 .hero-line { display: block; }
  .menu-btn { display: none; }
}
.hero h1 {
  font-size: clamp(1.7rem, 4.8cqi, 2.05rem);
  font-weight: 600;
  line-height: 1.18;
  letter-spacing: -0.024em;
  max-width: none;
  margin: 0 0 14px;
}
.hero-lead {
  font-size: 1.02rem;
  line-height: 1.55;
  color: var(--ink-2);
  max-width: 46ch;
  margin: 0 0 22px;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 10px; margin: 0; }
.hero-visual {
  margin: 0;
  background: transparent;
  color: #202938;
  border: 0;
  padding: 0;
  min-width: 0;
}
:root[data-theme="dark"] .hero-visual {
  background: #ffffff;
  border: 1px solid #d8dee8;
  padding: 18px 18px 14px;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .hero-visual {
    background: #ffffff;
    border: 1px solid #d8dee8;
    padding: 18px 18px 14px;
  }
}
.hero-visual svg { width: 100%; height: auto; display: block; }
.hero-visual svg text { font-family: var(--sans); }
.hero-visual figcaption {
  font-size: 12.5px;
  color: #586579;
  margin: 12px 0 0;
  line-height: 1.45;
  max-width: none;
}
.btn-primary, .btn-secondary {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  font-family: var(--sans); font-size: 14px; font-weight: 600;
  padding: 9px 16px; border-radius: 4px; text-decoration: none; cursor: pointer;
  line-height: 1.2;
}
.file-list { list-style: none; margin: 8px 0 0; padding: 0; }
.file-item { padding: 10px 0; border-top: 1px solid var(--rule); }
.file-item a { font-weight: 600; }
.file-meta { display: block; margin-top: 2px; }
.file-who { margin-top: 4px; }
.file-who summary { cursor: pointer; color: var(--muted); font-size: 12.5px; }
.file-who p { margin: 6px 0 0; }
.btn-primary { background: #2878c8; color: #fff; border: 1px solid #2878c8; }
.btn-primary:hover { background: #1a6bbf; color: #fff; border-color: #1a6bbf; text-decoration: none; }
.btn-secondary { background: var(--surface); color: var(--ink); border: 1px solid var(--rule-strong); }
.btn-secondary:hover { border-color: var(--blue); color: var(--blue); text-decoration: none; }

.metric-row {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  column-gap: 32px;
  margin: 36px 0 0;
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
}
.metric {
  display: block; text-decoration: none; color: inherit;
  background: transparent; border-radius: 0;
  padding: 16px 0 18px;
  border-bottom: 0;
  box-shadow: none;
}
a.metric:hover { background: transparent; }
a.metric:hover .v { color: var(--blue); }
.metric .v { font-size: 1.4rem; font-weight: 600; letter-spacing: -0.02em; font-variant-numeric: tabular-nums; line-height: 1.1; color: var(--ink); }
.metric .l { font-size: 13px; color: var(--ink-2); margin-top: 3px; }
.metric .s { font-size: 12px; color: var(--muted); margin-top: 2px; }
.metric-privacy { margin: 10px 0 0; max-width: none; font-size: 12.5px; line-height: 1.45; color: var(--ink-2); }

.portal {
  display: grid;
  grid-template-columns: 1.22fr 0.9fr;
  gap: 28px 48px;
  margin: 32px 0 8px;
}
.portal-card {
  background: transparent;
  border-radius: 0;
  padding: 0;
}
.portal-card h2 { margin: 0 0 8px; font-size: 1.05rem; }
.portal-card p { font-size: 14.5px; color: var(--ink-2); max-width: 58ch; }
.portal-links { display: flex; flex-wrap: wrap; gap: 8px 18px; margin-top: 4px; }
.portal-links a { font-weight: 600; font-size: 14px; text-decoration: none; }
.portal-links a:hover { text-decoration: underline; }
.portal-side { display: grid; gap: 28px; align-content: start; }

/* ---------- tables ---------- */
.table-wrap { overflow-x: auto; margin: 10px 0 18px; }
table.coverage { width: max-content; min-width: 100%; }
table.coverage th, table.coverage td { white-space: nowrap; vertical-align: middle; }
table.coverage th:not(:first-child) {
  writing-mode: vertical-rl;
  transform: rotate(180deg);
  text-align: left;
  text-transform: none;
  letter-spacing: 0;
  font-size: 11px;
  padding: 8px 2px 6px;
  height: 10.5rem;
}
table.coverage td { text-align: center; padding: 3px 7px; }
table.coverage td:first-child, table.coverage th:first-child {
  text-align: left;
  font-weight: 600;
  position: sticky;
  left: 0;
  background: var(--surface);
  z-index: 1;
}
table.coverage th:first-child { vertical-align: bottom; z-index: 2; padding-bottom: 8px; }
table { border-collapse: collapse; width: 100%; font-size: 13.5px; }
th, td { text-align: left; padding: 8px 12px 8px 0; border-bottom: 1px solid var(--rule); vertical-align: top; }
th { font-weight: 600; font-size: 11px; letter-spacing: 0.05em; text-transform: uppercase; color: var(--muted); white-space: nowrap; }
table.food-table th { text-transform: none; }
td.num, th.num { text-align: right; font-variant-numeric: tabular-nums; padding-right: 14px; }
td.mono { font-family: var(--mono); font-size: 12px; }
td.txt { max-width: 46ch; }
tr.click { cursor: pointer; }
tr.click:hover td { background: var(--pale-2); }
.yes { color: var(--good); font-weight: 600; }
.no { color: var(--bad); font-weight: 600; }
.na { color: var(--muted); }

.dots { display: inline-flex; gap: 3px; vertical-align: middle; }
.dot { width: 12px; height: 12px; border: 1px solid var(--rule-strong); background: transparent; display: inline-block; }
.dot.on { background: var(--green); border-color: var(--green); }
.dot.half { background: repeating-linear-gradient(45deg, var(--green) 0 2px, transparent 2px 4px); border-color: var(--green); }
.dot.dup { background: repeating-linear-gradient(135deg, var(--warn-ink) 0 2px, transparent 2px 4px); border-color: var(--warn-ink); }

.callout { border-left: 3px solid var(--blue); padding: 4px 0 4px 16px; margin: 18px 0; max-width: 68ch; }
.callout p:last-child { margin-bottom: 0; }
.warn { background: var(--warn-bg); color: var(--warn-ink); font-size: 13.5px; padding: 10px 14px; margin: 12px 0; border-radius: 8px; }
ul.scoring-rules { margin: 0; padding-left: 1.2em; font-size: 13px; list-style: none; }
ul.scoring-rules li { margin: 2px 0; }
.panel { background: var(--surface); padding: 18px 20px; margin: 16px 0; border-radius: var(--radius); }
.two { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; }
.three { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.kv { display: grid; grid-template-columns: max-content 1fr; gap: 4px 18px; font-size: 13.5px; margin: 8px 0 14px; }
.kv dt { color: var(--muted); }
.kv dd { margin: 0; font-variant-numeric: tabular-nums; }
.orig { font-style: italic; color: var(--ink-2); }
.lang { font-style: normal; font-size: 10px; letter-spacing: 0.08em; text-transform: uppercase; color: var(--muted); border: 1px solid var(--rule-strong); padding: 0 4px; margin-right: 6px; }

details.ws { border-top: 1px solid var(--rule); }
details.ws:last-of-type { border-bottom: 1px solid var(--rule); }
details.ws > summary { list-style: none; cursor: pointer; padding: 14px 0; display: grid; grid-template-columns: 70px 1fr auto; gap: 14px; align-items: baseline; }
details.ws > summary::-webkit-details-marker { display: none; }
details.ws > summary .code { font-family: var(--mono); font-size: 13.5px; color: var(--blue); }
details.ws > summary .t { font-weight: 600; }
details.ws > summary .st { font-size: 13px; color: var(--muted); }
details.ws > summary::after { content: "+"; font-family: var(--mono); color: var(--muted); grid-column: 3; }
details.ws[open] > summary::after { content: "−"; }
details.ws > .body { padding: 0 0 22px 84px; }
details.sub > summary { cursor: pointer; font-size: 13px; color: var(--ink-2); padding: 6px 0; }

/* ---------- worksheets ---------- */
.ws-search-bar { display: flex; align-items: center; gap: 12px; margin: 0 0 12px; flex-wrap: wrap; }
.ws-search-bar input {
  flex: 1 1 240px; min-width: 0;
  font-family: var(--sans); font-size: 14px; color: var(--ink);
  background: var(--surface); border: 1px solid var(--rule-strong);
  padding: 8px 12px; border-radius: 7px;
}
.ws-count { font-size: 13px; color: var(--muted); }
.ws-filters { display: flex; flex-wrap: wrap; gap: 8px; margin: 0 0 18px; }
.chip {
  font-family: var(--sans); font-size: 13px; color: var(--ink-2);
  background: var(--surface); border: 1px solid var(--rule-strong);
  border-radius: 999px; padding: 5px 12px; cursor: pointer;
}
.chip:hover { border-color: var(--blue); color: var(--blue); }
.chip.on { background: var(--navy); color: #fff; border-color: var(--navy); }
.stat-row { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; margin: 4px 0 16px; }
.frame-note { max-width: none; margin: 0 0 16px; }
.stat-card { background: var(--surface); border: 1px solid var(--rule); border-radius: 14px; padding: 16px 18px; }
.stat-card .v { font-size: 1.7rem; font-weight: 600; letter-spacing: -0.03em; line-height: 1.1; }
.stat-card .l { margin-top: 6px; font-size: 14px; color: var(--ink-2); }
.person-grid { display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 10px; margin: 8px 0 4px; }
.person-card {
  display: flex; align-items: center; justify-content: center;
  text-align: center; font: inherit; color: inherit; cursor: pointer;
  background: var(--surface); border: 1px solid var(--rule); border-radius: 14px;
  padding: 16px 10px; min-height: 64px; min-width: 0;
}
.person-card:hover { border-color: var(--blue); }
.person-card:focus-visible, .sess-tab:focus-visible, a.frame-dataset-btn:focus-visible, #openOther:focus-visible { outline: 2px solid var(--blue); outline-offset: 2px; }
.person-card.on { background: var(--pale); border-color: var(--navy); box-shadow: inset 0 0 0 1px var(--navy); }
.person-name { font-size: 16px; font-weight: 600; }
.frame-prompt { margin: 18px 0 0; color: var(--ink-2); }
.sess-heading { margin-top: 28px; }
.sess-tabs { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; margin: 0 0 16px; }
.sess-tab {
  text-align: left; font: inherit; color: inherit; cursor: pointer; min-width: 0;
  background: var(--surface); border: 1px solid var(--rule); border-radius: 14px; padding: 12px 16px;
}
.sess-tab span { display: block; font-weight: 600; }
.sess-tab .when { margin-top: 4px; font-size: 13px; font-weight: 400; color: var(--muted); }
.sess-tab[aria-selected="true"] { background: var(--pale); border-color: var(--navy); box-shadow: inset 0 0 0 1px var(--navy); }
.preview-heading { margin: 4px 0 8px; font-size: 1.05rem; }
.preview-note { margin: 0 0 12px; font-size: 13.5px; color: var(--muted); }
.frame-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.empty-session { padding: 28px 22px; border: 1px dashed var(--rule-strong); border-radius: 14px; background: var(--surface); }
.empty-session p { margin: 0; }
.empty-session .btn { margin-top: 14px; }
.frame-dataset { margin-top: 8px; }
.dataset-card.frame-dataset .ds-desc { max-width: none; line-height: 1.45; }
.frame-actions { display: flex; flex-wrap: wrap; align-items: center; gap: 12px 18px; margin-top: 4px; }
a.frame-dataset-btn { font-size: 16px; padding: 12px 18px; }
.frame-method { font-weight: 600; }
.ws15-pair { margin: 0 0 14px; }
.ws15-pair-label {
  margin: 0 0 8px;
  font-size: 12px; font-weight: 600; letter-spacing: 0.06em;
  text-transform: uppercase; color: var(--blue);
}
.ws15-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }
.ws15-card {
  display: flex; flex-direction: column; gap: 6px; min-width: 0;
  background: var(--surface); border: 1px solid var(--rule); border-radius: 14px;
  padding: 16px;
}
.ws15-card h3, .ws15-card h4 { margin: 0; font-size: 1.05rem; letter-spacing: 0; text-transform: none; color: var(--ink); }
.ws15-file { font-size: 12.5px; color: var(--ink-2); overflow-wrap: anywhere; }
.ws15-role { margin: 0; max-width: none; font-size: 14.5px; color: var(--ink-2); }
.ws15-foot { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-top: auto; padding-top: 12px; }
.ws15-meta { font-size: 13px; color: var(--muted); }
.ws15-card .btn-primary { flex: 0 0 auto; }
.ws15-card a:focus-visible { outline: 2px solid var(--blue); outline-offset: 2px; }
.ws15-full { margin-top: 8px; background: var(--pale-2); }
.ws15-full .tech { margin-bottom: 0; }
#ws15-data > .tech { margin-top: 2px; }
.ws-group-label {
  font-size: 12px; font-weight: 600; letter-spacing: 0.06em;
  text-transform: uppercase; color: var(--muted);
  margin: 22px 0 10px;
}
.ws-group-cards { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 12px; }
.ws-card {
  display: flex; flex-direction: column; gap: 4px;
  background: var(--surface); border-radius: 10px; padding: 14px 14px 12px;
  min-width: 0;
}
.ws-card-code { font-family: var(--mono); font-size: 12px; color: var(--blue); }
.ws-card-title { font-size: 15px; font-weight: 600; margin: 0; overflow-wrap: anywhere; }
.ws-card-date { font-size: 12px; color: var(--muted); }
.ws-card-desc { font-size: 13.5px; color: var(--ink-2); margin: 4px 0 8px; }
.ws-card-actions { display: flex; gap: 12px; flex-wrap: wrap; align-items: baseline; margin-top: auto; }
.ws-card-actions a { font-size: 13px; font-weight: 600; text-decoration: none; }
.ws-card-actions a:hover { text-decoration: underline; }
.ws-hidden { display: none; }

.tabs { display: flex; gap: 4px; margin: 18px 0 8px; font-size: 14px; flex-wrap: wrap; }
.tabs a { padding: 8px 12px; color: var(--ink-2); text-decoration: none; border-radius: 7px; }
.tabs a:hover { background: var(--surface-2); }
.tabs a.active { color: var(--navy); background: var(--pale); font-weight: 600; }
.filters { display: flex; flex-wrap: wrap; gap: 12px 16px; align-items: end; font-size: 13px; margin: 12px 0; }
.filters label { display: flex; flex-direction: column; gap: 4px; color: var(--muted); font-size: 11px; letter-spacing: 0.05em; text-transform: uppercase; }
select, input[type="search"], input[type="text"] {
  font-family: var(--sans); font-size: 14px; color: var(--ink); background: var(--surface);
  border: 1px solid var(--rule-strong); padding: 7px 10px; border-radius: 7px; min-width: 140px;
}
.btn { font-size: 13px; color: var(--ink); background: var(--surface); border: 1px solid var(--rule-strong); padding: 7px 12px; cursor: pointer; border-radius: 7px; text-decoration: none; display: inline-block; }
.btn:hover { border-color: var(--blue); color: var(--blue); }
.btn.primary { background: var(--navy); color: #fff; border-color: var(--navy); }
.pager { display: flex; gap: 10px; align-items: center; font-size: 13px; color: var(--muted); margin: 10px 0; }

.legend { display: flex; flex-wrap: wrap; gap: 6px 14px; font-size: 12.5px; color: var(--ink-2); margin: 8px 0; }
.legend span { display: inline-flex; align-items: center; gap: 6px; }
.legend i { width: 10px; height: 10px; display: inline-block; border-radius: 2px; }
.strip { position: relative; height: 34px; background: var(--surface); border-radius: 6px; margin: 6px 0 2px; }
.strip .tick { position: absolute; top: 4px; bottom: 4px; width: 3px; border-radius: 1px; cursor: pointer; }
.axis { display: flex; justify-content: space-between; font-family: var(--mono); font-size: 11px; color: var(--muted); }
.stack { display: flex; height: 14px; gap: 2px; margin: 6px 0; border-radius: 4px; overflow: hidden; }
.stack > div { height: 100%; min-width: 2px; }
.hbar { display: grid; grid-template-columns: minmax(140px, 220px) 1fr 52px; gap: 10px; align-items: center; font-size: 13px; padding: 3px 0; }
.compact .hbar { grid-template-columns: minmax(70px, 105px) 1fr 40px; font-size: 12.5px; }
.hbar .track { height: 8px; background: var(--surface-2); position: relative; border-radius: 4px; }
.hbar .fill { position: absolute; left: 0; top: 0; bottom: 0; background: var(--blue-bright); border-radius: 4px; }
.hbar .n { text-align: right; font-variant-numeric: tabular-nums; color: var(--ink-2); }
.tip { position: fixed; z-index: 200; pointer-events: none; background: var(--navy); color: #f4f7fb; font-size: 12.5px; line-height: 1.45; padding: 8px 10px; max-width: 280px; border-radius: 8px; display: none; }
.tip b { font-weight: 600; }
svg text { font-family: var(--sans); }

.thumbs { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 14px; margin: 12px 0; }
.thumbs.frame-grid { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.thumbs figure { margin: 0; }
.thumbs img, button.thumb img { width: 100%; display: block; background: var(--surface-2); border-radius: 6px; aspect-ratio: 16 / 7.6; object-fit: cover; }
.thumbs figcaption { font-size: 12px; color: var(--ink-2); margin-top: 5px; line-height: 1.35; }

.page.methods { max-width: 960px; }
.methods h1 { margin-bottom: 12px; }
.methods h2 { scroll-margin-top: 132px; margin: 0 0 14px; font-size: 1.4rem; }
.methods h3 { margin: 22px 0 6px; font-size: 1.05rem; font-weight: 600; }
.methods p { line-height: 1.65; max-width: none; }
.method-block { scroll-margin-top: 132px; margin-top: 3.25rem; }
.method-block:first-of-type { margin-top: 1.75rem; }
.section-nav {
  position: sticky; top: var(--header-h); z-index: 40;
  display: flex; gap: 4px; overflow-x: auto; overscroll-behavior-x: contain;
  margin: 16px 0 4px; padding: 8px 0;
  background: var(--paper);
  border-bottom: 1px solid var(--rule);
}
.section-nav a {
  flex: 0 0 auto; display: inline-flex; align-items: center; gap: 8px;
  min-height: 44px; padding: 8px 14px;
  color: var(--ink); text-decoration: none; font-size: 15px; font-weight: 500;
  white-space: nowrap;
}
.section-nav a .mark {
  width: 7px; height: 7px; border-radius: 50%; background: var(--rule-strong); flex: 0 0 auto;
}
.section-nav a:hover { background: var(--pale-2); text-decoration: none; }
.section-nav a:focus-visible { outline: 2px solid var(--blue-bright); outline-offset: 2px; }
.section-nav a.active { background: var(--pale); color: var(--blue); }
.section-nav a.active .mark { background: var(--blue); }
.stages-flow {
  list-style: none; margin: 8px 0 22px; padding: 0;
  display: grid; grid-template-columns: repeat(5, minmax(0, 1fr)); gap: 22px;
}
.stages-flow li { position: relative; margin: 0; min-width: 0; }
.stages-flow .n {
  display: block; margin-bottom: 10px;
  font-family: var(--mono); font-size: 13px; font-weight: 500; color: var(--blue);
}
.stages-flow li:not(:last-child)::after {
  content: ""; position: absolute; top: 0.45em; left: 1.15em; right: -22px;
  height: 1px; background: var(--rule-strong);
}
.stages-flow h3 { margin: 0 0 6px; font-size: 1.05rem; }
.stages-flow p { margin: 0; font-size: 14.5px; line-height: 1.45; color: var(--ink-2); }
.compare {
  display: grid; grid-template-columns: 1fr 1fr; gap: 8px 40px;
  margin: 6px 0 18px;
}
.compare h3 { margin-top: 0; }
.compare p { margin: 0; color: var(--ink-2); }
.explore-next { display: flex; flex-wrap: wrap; gap: 8px 18px; margin-top: 4px; }
.explore-next a { font-weight: 600; text-decoration: none; }
.explore-next a:hover { text-decoration: underline; }
.flow .step { background: var(--surface); border-radius: 10px; padding: 12px 14px; }
.flow .step .n { font-family: var(--mono); font-size: 12px; color: var(--blue); }
.flow .step .h { font-weight: 600; font-size: 14.5px; margin: 4px 0; }
.flow .step .d { font-size: 13px; color: var(--ink-2); }
.stages { counter-reset: st; margin: 10px 0 0; padding: 0; list-style: none; }
.stages > li { display: grid; grid-template-columns: 40px 1fr; gap: 8px; padding: 14px 0; }
.stages > li::before { counter-increment: st; content: counter(st); font-family: var(--mono); color: var(--blue); font-size: 14px; padding-top: 2px; }
.stages > li h3 { margin: 0 0 6px; font-size: 1rem; }

/* -- section-nav: updated active state -- */
.section-nav a.active { background: var(--navy); color: #fff; }
.section-nav a.active .mark { background: #fff; }

/* -- process navigator -- */
.process-nav { margin: 4px 0 22px; border: 1px solid var(--rule); border-radius: 10px; overflow: hidden; }
.process-steps {
  display: grid; grid-template-columns: repeat(5, minmax(0, 1fr));
  border-bottom: 1px solid var(--rule); background: var(--pale-2);
}
.process-step {
  appearance: none; border: 0; background: none; cursor: pointer;
  font-family: var(--sans);
  display: flex; flex-direction: column; gap: 2px; padding: 12px 12px 10px;
  text-align: left; border-right: 1px solid var(--rule); border-bottom: 3px solid transparent;
  margin-bottom: -1px; transition: background 0.1s;
}
.process-step:last-child { border-right: 0; }
.process-step:hover { background: var(--pale); }
.process-step[aria-selected="true"] { background: var(--surface); border-bottom-color: var(--navy); }
.process-step[aria-selected="true"] .ps-title { color: var(--navy); }
.ps-num { font-family: var(--mono); font-size: 10px; font-weight: 600; color: var(--blue); letter-spacing: 0.04em; margin-bottom: 2px; }
.ps-title { font-size: 14px; font-weight: 600; color: var(--ink); line-height: 1.2; }
.ps-summary { font-size: 12px; color: var(--muted); line-height: 1.3; margin-top: 2px; }
.process-panel { background: var(--surface); padding: 20px 22px 18px; }
.process-panel[hidden] { display: none; }
.process-panel > p { margin: 0 0 12px; }
.process-panel-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px 36px; margin-top: 4px; }
.process-panel-col h4 { margin: 0 0 6px; font-size: 13.5px; }
.process-panel-col ul { margin: 0; padding-left: 1.2em; font-size: 13px; color: var(--ink-2); }
.process-panel-col ul li { margin: 3px 0; }
.process-output {
  padding: 10px 14px; background: var(--pale); border-radius: 8px;
  border-left: 3px solid var(--blue); font-size: 13px; color: var(--ink-2); line-height: 1.45;
}
.process-output b { color: var(--ink); display: block; margin-bottom: 4px; }

/* -- method flow diagram -- */
.method-flow {
  display: flex; align-items: center; gap: 0;
  margin: 18px 0 22px; overflow-x: auto; padding: 4px 0 8px;
}
.flow-node {
  flex: 1 1 140px; background: var(--surface); border: 1.5px solid var(--rule-strong);
  border-radius: 10px; padding: 14px 12px;
  font-size: 15px; font-weight: 600; color: var(--ink);
  text-align: center; min-width: 120px; line-height: 1.3;
}
.flow-node--accent { background: var(--pale); border-color: var(--blue); color: var(--navy); }
.flow-node--output { background: var(--navy); color: #fff; border-color: var(--navy); }
.flow-node-sub { font-size: 13px; font-weight: 500; opacity: 0.85; display: block; margin-top: 2px; }
.flow-arr {
  flex: 0 0 42px; display: flex; align-items: center; justify-content: center;
  color: var(--navy); font-size: 34px; font-weight: 600; line-height: 1;
}
p.span-line { max-width: none; white-space: nowrap; }
.arch-grid, .cat-grid {
  display: grid; grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px; margin: 18px 0 8px;
}
.arch-card, .cat-card {
  display: block; background: var(--surface); border: 1px solid var(--rule);
  border-radius: 12px; padding: 16px 16px 14px; text-decoration: none; color: inherit;
}
.arch-card:hover, .cat-card:hover { border-color: var(--blue); text-decoration: none; }
.arch-card h3, .cat-card h3 { margin: 8px 0 6px; font-size: 1.05rem; }
.cat-card h3 { margin-top: 0; }
.arch-card p, .cat-card p { margin: 0; font-size: 14.5px; color: var(--ink-2); max-width: none; }
.find-page p, .find-page .lead { max-width: none; }
.find-grid {
  display: grid; grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px; margin: 8px 0 8px;
}
.find-grid a, .find-profile {
  display: flex; flex-direction: column; height: 100%; min-width: 0;
  background: var(--surface); border: 1px solid var(--rule); border-radius: 12px;
  padding: 16px 16px 14px; text-decoration: none; color: inherit;
}
.find-grid a:hover, .find-profile:hover { border-color: var(--blue); text-decoration: none; }
.find-grid a:focus-visible, .find-profile:focus-visible { outline: 2px solid var(--blue); outline-offset: 2px; }
.find-grid h2, .find-profile h3 { margin: 0 0 6px; font-size: 1.05rem; }
.find-grid p, .find-profile p { margin: 0; font-size: 14.5px; line-height: 1.45; color: var(--ink-2); }
.find-go { margin-top: auto; padding-top: 14px; color: var(--blue); font-size: 14px; font-weight: 600; }
.find-profiles { margin-top: 28px; }
.find-profiles > h2 { margin-bottom: 8px; }
.arch-flow {
  display: flex; flex-wrap: wrap; align-items: center; gap: 8px;
  margin: 8px 0 18px; color: var(--muted); font-size: 13px; font-weight: 600;
}
.arch-flow span { color: var(--navy); }
.explore-path {
  list-style: none; margin: 8px 0 10px; padding: 0;
  display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 18px;
}
.explore-path li { position: relative; min-width: 0; }
.explore-path a {
  display: flex; flex-direction: column; height: 100%;
  background: var(--surface); border: 1px solid var(--rule); border-radius: 12px;
  padding: 14px 14px 16px; text-decoration: none; color: inherit;
}
.explore-path a:hover { border-color: var(--blue); text-decoration: none; }
.explore-path a:focus-visible { outline: 2px solid var(--blue); outline-offset: 2px; }
.explore-path .n {
  width: 28px; height: 28px; border-radius: 50%; display: grid; place-items: center;
  background: var(--navy); color: #fff; font-size: 13px; font-weight: 600;
}
.explore-path h3 { margin: 10px 0 6px; font-size: 1rem; }
.explore-path p { margin: 0; font-size: 14px; line-height: 1.45; color: var(--ink-2); max-width: none; }
.material-grid { display: grid; grid-template-columns: 1fr; gap: 12px; margin: 8px 0 16px; }
.nb-page { max-width: none; }
.nb-page .log-tech { max-width: none; }
.nb-page p, .nb-page .lead, .nb-page .nb-note, .nb-page .log-note { max-width: none; }
.nb-section { margin: 32px 0 0; }
.nb-section > h2 { margin: 0 0 8px; }
.nb-section > p { margin-top: 0; }
.nb-pack {
  background: var(--surface); border: 1px solid var(--rule); border-radius: 12px;
  padding: 4px 18px; margin: 8px 0 0;
}
.nb-pack-row {
  display: flex; align-items: center; justify-content: space-between; gap: 18px;
  padding: 14px 0;
}
.nb-pack-row + .nb-pack-row { border-top: 1px solid var(--rule); }
.nb-pack-row h3 { margin: 0 0 4px; font-size: 1rem; }
.nb-pack-row p { margin: 0; color: var(--ink-2); }
.nb-seq {
  list-style: none; margin: 8px 0 12px; padding: 0; width: 100%;
  display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 18px;
}
.nb-seq li {
  position: relative; min-height: 100%;
  display: flex; flex-direction: column;
  background: var(--surface); border: 1px solid var(--rule); border-radius: 12px; padding: 16px 18px 18px;
}
.nb-seq li:not(:last-child)::after {
  content: ""; position: absolute; top: 30px; right: -18px; width: 18px; height: 2px;
  background: var(--rule-strong);
}
.nb-seq .n {
  width: 28px; height: 28px; border-radius: 50%; display: grid; place-items: center;
  background: var(--navy); color: #fff; font-size: 13px; font-weight: 600;
}
.nb-seq h3 { margin: 12px 0 4px; font-size: 1.05rem; }
.nb-kicker { margin: 0 0 8px; font-size: 13px; font-weight: 600; letter-spacing: 0.01em; color: var(--blue); }
.nb-seq p:last-child { margin: 0; font-size: 14.5px; line-height: 1.5; color: var(--ink-2); max-width: none; }
.nb-note { color: var(--ink-2); }
.nb-muted { margin: 0 0 12px; font-size: 13px; line-height: 1.45; color: var(--muted); max-width: none; }
.nb-find { display: block; margin: 8px 0 12px; font-size: 14px; color: var(--ink-2); }
.nb-find input { display: block; margin-top: 4px; width: min(320px, 100%); }
.nb-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 12px; margin: 0 0 14px; width: 100%; }
.nb-card {
  appearance: none; width: 100%; text-align: left; cursor: pointer; font: inherit; color: inherit;
  background: var(--surface); border: 1px solid var(--rule); border-radius: 12px; padding: 14px 16px;
}
.nb-card:hover { border-color: var(--blue); }
.nb-card:focus-visible { outline: 2px solid var(--blue); outline-offset: 2px; }
.nb-card[aria-pressed="true"] { background: var(--pale); border-color: var(--blue); box-shadow: inset 3px 0 0 var(--blue); }
.nb-card-name { display: block; font-weight: 600; font-size: 1.02rem; }
.nb-card-session { display: block; margin-top: 4px; color: var(--ink-2); font-size: 13.5px; }
.nb-detail {
  margin: 0 0 18px; padding: 16px 18px 18px;
  background: var(--surface); border: 1px solid var(--blue); border-radius: 12px;
}
.nb-detail h3 { margin: 0 0 4px; }
.nb-detail p { max-width: none; }
.nb-steps { margin: 8px 0 16px; padding-left: 1.2em; max-width: none; }
.nb-steps li { margin: 0 0 6px; }
.nb-files { list-style: none; margin: 8px 0 16px; padding: 0; display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; width: 100%; }
.nb-cohort { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 8px; }
.nb-files li {
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
  margin: 0; padding: 12px 14px; background: var(--surface); border: 1px solid var(--rule); border-radius: 12px;
  transition: background 0.15s ease, border-color 0.15s ease;
}
.nb-files li:hover { background: var(--pale); border-color: var(--blue); }
.nb-files.nb-cohort li {
  display: grid; grid-template-columns: minmax(0, 1fr) auto auto;
  align-items: center; gap: 8px 10px; padding: 7px 10px;
}
.nb-files.nb-cohort .nb-dl { padding: 4px 10px; font-size: 12px; }
.nb-kind { color: var(--muted); font-size: 12px; font-weight: 600; letter-spacing: 0.02em; white-space: nowrap; }
.nb-who { font-weight: 600; }
.nb-dl {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 6px 12px; border-radius: 999px; border: 1px solid var(--rule-strong);
  background: var(--paper); color: var(--navy); text-decoration: none;
  font-size: 13px; font-weight: 600; white-space: nowrap;
}
.nb-files li:hover .nb-dl, .nb-dl:hover { background: var(--blue); border-color: var(--blue); color: #fff; text-decoration: none; }
.nb-dl:focus-visible { outline: 2px solid var(--blue); outline-offset: 2px; }
.nb-resources { list-style: none; margin: 8px 0 18px; padding: 0; display: grid; gap: 10px; }
.nb-resources li {
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  padding: 14px 16px; background: var(--surface); border: 1px solid var(--rule); border-radius: 12px;
}
.nb-resources li:hover { background: var(--pale); border-color: var(--blue); }
.nb-resources strong { display: block; margin-bottom: 4px; }
.nb-resources span { display: block; color: var(--ink-2); font-size: 14.5px; line-height: 1.45; }
.nb-more { margin: 8px 0 18px; border: 1px solid var(--rule); border-radius: 12px; background: var(--surface); }
.nb-more > summary { cursor: pointer; padding: 14px 16px; font-weight: 600; }
.nb-more-body { padding: 0 16px 16px; }
.nb-more-body p { max-width: none; }
.material-card {
  background: var(--surface); border: 1px solid var(--rule); border-radius: 12px; padding: 14px 16px 12px;
}
.material-card h2 { margin: 0 0 8px; font-size: 1.05rem; }
.material-card p { margin: 0 0 8px; max-width: none; }
.material-card p:last-child { margin-bottom: 0; }
.ws-catalogue { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
.ws-cat {
  display: block; padding: 14px 16px; border: 1px solid var(--rule); border-radius: 10px;
  background: var(--surface); text-decoration: none; color: inherit;
}
.ws-cat:hover { border-color: var(--blue); text-decoration: none; }
.ws-cat b { display: block; font-size: 14px; }
.ws-cat span { display: block; margin-top: 4px; color: var(--ink-2); font-size: 14px; }
.code-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 10px; margin: 12px 0 18px; }
.code-card { border: 1px solid var(--rule); border-radius: 10px; padding: 12px; background: var(--surface); }
.code-card h3 { margin: 0 0 6px; font-size: 15px; }
.code-card p { margin: 0; font-size: 13.5px; color: var(--ink-2); }

/* -- log metrics -- */
.log-dataset { margin-top: 0; }
.log-sample-title { margin: 4px 0 2px; font-size: 1.05rem; }
.log-sample-wrap { margin-top: 0; }
table.log-examples { table-layout: fixed; font-size: 14px; }
table.log-examples th { white-space: normal; }
table.log-examples .log-c-who { width: 16%; }
table.log-examples .log-c-action { width: 30%; }
table.log-examples .log-c-code { width: 28%; }
table.log-examples .log-c-detail { width: 26%; }
table.log-examples td:nth-child(2) { font-weight: 500; }
table.log-examples code { font-size: 12.5px; }
.log-caption { margin: 0 0 8px; font-size: 13px; color: var(--muted); max-width: none; }
.lead.log-lead { max-width: none; }
.log-tech { max-width: 760px; overflow-wrap: break-word; }
.log-tech h3 { margin: 22px 0 8px; font-size: 1rem; }
.log-tech h3:first-child { margin-top: 2px; }
.log-tech .kv { grid-template-columns: minmax(8.5rem, 16rem) minmax(0, 1fr); align-items: baseline; }
.log-tech .kv dd { min-width: 0; }
.log-tech .log-path, .log-tech code { overflow-wrap: anywhere; }
.log-note-label { margin: 12px 0 4px; font-size: 13px; font-weight: 600; color: var(--ink); }
.log-note { margin: 0 0 10px; max-width: none; font-size: 13.5px; line-height: 1.55; color: var(--ink-2); }
.log-tech .table-wrap { margin: 4px 0 12px; }
.log-tech table.log-dict th { text-transform: none; letter-spacing: 0.01em; font-size: 12px; white-space: normal; text-align: left; }
.log-tech table.log-dict td { white-space: normal; text-align: left; }
.log-tech table.log-counts { width: 100%; table-layout: fixed; }
.log-tech table.log-counts tbody tr:last-child { font-weight: 600; }
.log-tech table.log-codes { width: 100%; table-layout: fixed; }
.log-tech table.log-codes th:first-child, .log-tech table.log-codes td:first-child { width: 42%; }
.log-tech table.log-codes code { font-size: 12.5px; }
.log-tech table.log-dict th.num, .log-tech table.log-dict td.num { text-align: right; }
.field-where { margin-left: 6px; font-size: 10px; font-weight: 600; letter-spacing: 0.04em; text-transform: uppercase; color: var(--muted); white-space: nowrap; }
.log-metrics {
  display: grid; grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px; margin: 14px 0 20px;
}
.log-metric { background: var(--surface); border-radius: 8px; padding: 12px 14px; border: 1px solid var(--rule); }
.lm-label { font-size: 10px; font-weight: 600; letter-spacing: 0.07em; text-transform: uppercase; color: var(--blue); margin-bottom: 4px; }
.lm-name { font-size: 14px; font-weight: 600; color: var(--ink); margin-bottom: 4px; line-height: 1.2; }
.lm-desc { font-size: 12.5px; color: var(--ink-2); line-height: 1.4; }

/* -- evidence quality grid -- */
.evidence-grid {
  display: grid; grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px; margin: 14px 0 20px;
}
.evidence-col { background: var(--surface); border-radius: 10px; padding: 14px 16px; border: 1px solid var(--rule); }
.evidence-col-head { font-size: 10.5px; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; margin-bottom: 10px; }
.evidence-col--auto .evidence-col-head { color: var(--good, #2e7d32); }
.evidence-col--human .evidence-col-head { color: var(--blue); }
.evidence-col--limit .evidence-col-head { color: var(--warn-ink, #b45309); }
.evidence-col ul { margin: 0; padding-left: 1.1em; font-size: 13px; color: var(--ink-2); }
.evidence-col ul li { margin: 5px 0; }

/* -- notebook inspection cards -- */
.nb-stages { display: grid; grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: 10px; margin: 14px 0 20px; }
.nb-stage { background: var(--surface); border-radius: 8px; padding: 12px 14px; border: 1px solid var(--rule); }
.nb-num { font-family: var(--mono); font-size: 10px; font-weight: 600; letter-spacing: 0.04em; color: var(--blue); margin-bottom: 4px; text-transform: uppercase; }
.nb-name { font-size: 14px; font-weight: 600; color: var(--ink); margin-bottom: 4px; line-height: 1.2; }
.nb-items { font-size: 12.5px; color: var(--ink-2); line-height: 1.4; }

.empty { font-size: 14px; color: var(--muted); padding: 14px 0; }

.dataset-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin: 16px 0 28px; }
.dataset-card { background: var(--surface); border-radius: 12px; padding: 18px 18px 16px; }
.dataset-card .ds-type { font-size: 11px; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; color: var(--blue); margin: 0 0 6px; }
.dataset-card .ds-title { font-size: 16px; font-weight: 600; margin: 0 0 8px; }
.dataset-card .ds-desc { font-size: 13.5px; color: var(--ink-2); margin: 0 0 10px; }
.dataset-card .ds-meta { font-size: 12px; color: var(--muted); margin-bottom: 12px; }
.dataset-card .ds-links { display: flex; gap: 14px; flex-wrap: wrap; font-size: 13.5px; font-weight: 600; }
.dataset-card .ds-links a { text-decoration: none; }
.dataset-card .ds-links a:hover { text-decoration: underline; }

.jump { display: flex; flex-wrap: wrap; gap: 8px; font-size: 13.5px; margin: 4px 0 18px; }
.jump a { text-decoration: none; background: var(--surface); border-radius: 999px; padding: 4px 10px; border: 1px solid var(--rule); }
.jump a:hover { background: var(--pale); }
.back { margin: 0 0 8px; font-size: 14px; }
.back a { font-weight: 600; text-decoration: none; }
.guide { list-style: none; padding: 0; margin: 0 0 8px; }
.guide li {
  display: grid; gap: 2px;
  padding: 10px 0;
  border-bottom: 1px solid var(--rule);
  max-width: 68ch;
}
.guide a { font-weight: 600; text-decoration: none; }
.guide li span { color: var(--ink-2); font-size: 14.5px; }
#wsEmpty[hidden] { display: none; }
details.tech { margin: 12px 0; }
details.tech > summary { cursor: pointer; font-size: 13px; color: var(--blue); padding: 6px 0; list-style: none; font-weight: 600; }
details.tech > summary::-webkit-details-marker { display: none; }
details.tech > summary::before { content: "+ "; font-family: var(--mono); }
details.tech[open] > summary::before { content: "− "; }
.tech-body { padding: 4px 0 8px; }
dl.terms { display: grid; grid-template-columns: max-content 1fr; gap: 8px 22px; margin: 10px 0 18px; max-width: 76ch; }
dl.terms dt { font-weight: 600; }
dl.terms dd { margin: 0; color: var(--ink-2); }
dl.compact-terms { font-size: 13.5px; gap: 4px 18px; }
.explore-head { margin-bottom: 8px; }
.finder { display: flex; align-items: center; gap: 12px; font-size: 13px; color: var(--muted); margin: 6px 0 4px; }
.finder input { min-width: 220px; }
.sw { display: inline-block; width: 10px; height: 10px; border-radius: 2px; margin-right: 8px; vertical-align: 0; }
section.session { padding-top: 8px; }
section.session h3 .small, h3 .small { font-weight: 400; margin-left: 8px; }
.pn { margin-top: 36px; }
th.vert { writing-mode: vertical-rl; transform: rotate(180deg); white-space: nowrap; font-size: 10.5px; padding: 6px 4px; text-transform: none; letter-spacing: 0; }
td.cell { text-align: center; padding: 6px 4px; }
.mix { min-width: 160px; }
ul.checks { list-style: none; padding: 0; margin: 6px 0 14px; font-size: 14px; columns: 2; }
ul.checks li { padding: 2px 0; }
ul.checks li.on { color: var(--good); }
ul.checks li.off { color: var(--muted); }
section.lim { padding: 14px 0 6px; }
section.lim h3 { margin: 0 0 6px; font-size: 1rem; }
p.why { font-size: 14px; color: var(--ink-2); }
section.dl { padding: 8px 0 4px; }
section.dl h3 { margin: 8px 0 4px; font-family: var(--mono); font-size: 15px; font-weight: 500; }
.filters label.chk { flex-direction: row; align-items: center; gap: 6px; text-transform: none; letter-spacing: 0; font-size: 13px; color: var(--ink-2); padding-bottom: 6px; }
.split { display: grid; grid-template-columns: minmax(0, 1fr) 340px; gap: 24px; align-items: start; }
.detail { position: sticky; top: 76px; background: var(--surface); border-radius: 12px; padding: 16px 18px; max-height: calc(100vh - 96px); overflow-y: auto; }
.detail h3 { margin: 0 0 10px; font-size: 1rem; }
.detail .kv { grid-template-columns: 1fr; gap: 2px; }
.detail .kv dt { margin-top: 8px; font-size: 11px; letter-spacing: 0.05em; text-transform: uppercase; }
tr[aria-selected="true"] td { background: var(--accent-soft); }
img.mini { width: 96px; height: auto; display: block; border-radius: 4px; }
button.thumb, a.thumb { padding: 0; border: 0; background: none; cursor: zoom-in; display: block; width: 100%; text-decoration: none; color: inherit; }
button.thumb.big { margin-bottom: 4px; }
.lightbox { position: fixed; inset: 0; z-index: 140; background: rgba(12, 24, 40, 0.88); display: none; align-items: center; justify-content: center; flex-direction: column; gap: 12px; padding: 24px; }
.lightbox.open { display: flex; }
.lightbox img { max-width: min(1100px, 92vw); max-height: 78vh; display: block; border-radius: 6px; }
.lightbox figure { margin: 0; }
.lightbox figcaption { color: #e7eef6; font-size: 13px; margin-top: 8px; text-align: center; }

#fOut td:not(:last-child) { white-space: nowrap; }
#fOut td:last-child { min-width: 180px; }

/* -- student roster -- */
.student-roster {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 10px; margin: 16px 0 24px;
}
.student-card {
  display: flex; flex-direction: column;
  background: var(--surface); border: 1px solid var(--rule); border-radius: 10px;
  padding: 16px 18px; text-decoration: none; color: inherit; gap: 0;
  transition: border-color 0.14s, box-shadow 0.14s;
}
.student-card:hover {
  border-color: var(--blue); box-shadow: 0 2px 10px rgba(40, 120, 200, 0.1);
  text-decoration: none; color: inherit;
}
.student-card-name {
  font-size: 18px; font-weight: 700; color: var(--ink); letter-spacing: -0.015em; line-height: 1.2;
}
.student-card:focus-visible { outline: 2px solid var(--blue); outline-offset: 2px; }
.student-card-meta { margin: 10px 0 0; display: grid; gap: 4px; }
.student-card-meta div { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 10px; align-items: baseline; }
.student-card-meta dt { margin: 0; font-size: 12px; font-weight: 500; color: var(--muted); }
.student-card-meta dd { margin: 0; font-size: 12.5px; color: var(--ink-2); text-align: right; white-space: nowrap; }
.student-card-cta {
  margin-top: 14px; padding-top: 10px; border-top: 1px solid var(--rule);
  font-size: 13px; font-weight: 600; color: var(--blue);
}

/* -- improved worksheet cards -- */
.ws-card { border: 1px solid var(--rule); transition: border-color 0.14s, box-shadow 0.14s; }
.ws-card:hover { border-color: var(--blue); box-shadow: 0 2px 8px rgba(40, 120, 200, 0.1); }

/* -- limitations card treatment -- */
section.lim {
  background: var(--surface); border: 1px solid var(--rule); border-radius: 10px;
  padding: 18px 20px; margin-bottom: 12px;
  border-left: 3px solid var(--rule-strong);
}
section.lim h3 { margin: 0 0 8px; font-size: 1rem; }
p.why { font-size: 14px; color: var(--ink-2); }
.vq-status { display: inline-block; font-size: 12px; font-weight: 600; padding: 1px 8px; border-radius: 999px; background: var(--pale); color: var(--navy); white-space: nowrap; }
.vq-status.partial { background: var(--warn-bg); color: var(--warn-ink); }
.vq-status.none { background: var(--surface-2); color: var(--ink-2); border: 1px solid var(--rule); }
table.vq th, table.vq td { white-space: normal; }
@media (max-width: 800px) {
  table.vq-stack thead { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }
  table.vq-stack, table.vq-stack tbody, table.vq-stack tr, table.vq-stack td { display: block; width: auto; }
  table.vq-stack tr { padding: 10px 0; border-bottom: 1px solid var(--rule); }
  table.vq-stack td { border-bottom: 0; padding: 2px 0; }
  table.vq-stack td::before { content: attr(data-label); display: block; font-size: 11px; font-weight: 600; letter-spacing: 0.04em; text-transform: uppercase; color: var(--muted); }
}
@media (max-width: 800px) {
  .vq-flow { flex-direction: column; align-items: stretch; }
  .vq-flow .flow-arr { transform: rotate(90deg); flex-basis: 24px; font-size: 22px; }
  .vq-flow .flow-node { min-width: 0; }
}
details.vq { border: 1px solid var(--rule); border-radius: 10px; background: var(--surface); margin: 10px 0; padding: 0 16px 8px; }
details.vq > summary { cursor: pointer; font-weight: 600; padding: 14px 28px 14px 0; list-style: none; position: relative; }
details.vq > summary::-webkit-details-marker { display: none; }
details.vq > summary::after { content: "+"; font-family: var(--mono); color: var(--muted); position: absolute; right: 0; top: 14px; }
details.vq[open] > summary::after { content: "−"; }
details.vq h3 { font-size: 1rem; margin: 4px 0 6px; }
details.vq p, .vq-block p { max-width: none; }

/* Reference pages: one column for prose, tables, and cards */
.page.ref-page { max-width: 960px; }
.ref-page p, .ref-page .lead { max-width: none; }
.ref-page .lead { margin-bottom: 14px; }
.ref-page h2 { margin-top: 28px; }
.ref-page .method-flow { align-items: stretch; margin: 8px 0 14px; }
.ref-page .flow-node {
  display: flex; flex-direction: column; justify-content: center;
  min-height: 4.75rem; padding: 10px 12px;
}
.ref-page .flow-arr { align-self: center; }
.src-grid, .limit-grid {
  display: grid; grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px; margin: 4px 0 8px; align-items: stretch;
}
.limit-grid { grid-template-columns: 1fr 1fr; }
.src-card, .limit-card {
  display: flex; flex-direction: column; min-width: 0; height: 100%;
  margin: 0; background: var(--surface); border: 1px solid var(--rule);
  border-radius: 12px; padding: 14px 14px 12px;
}
.src-card h3, .limit-card strong {
  margin: 0 0 6px; font-size: 1rem; font-weight: 600; color: var(--ink); line-height: 1.3;
}
.src-card .src-what { margin: 0 0 10px; font-size: 14px; color: var(--ink-2); }
.src-card dl { margin: auto 0 0; display: grid; gap: 8px; }
.src-card dt {
  margin: 0; font-size: 11px; font-weight: 600; letter-spacing: 0.04em;
  text-transform: uppercase; color: var(--muted);
}
.src-card dd { margin: 2px 0 0; font-size: 13.5px; color: var(--ink-2); }
.limit-card { font-size: 14.5px; color: var(--ink-2); }
.ref-page .dataset-grid { align-items: stretch; }
.ref-page .dataset-card { height: 100%; display: flex; flex-direction: column; margin: 0; }
.ref-page .ds-facts {
  display: grid; grid-template-columns: 8.5rem minmax(0, 1fr);
  gap: 8px 12px; margin: 4px 0 0; font-size: 13.5px;
}
.ref-page .ds-facts dt {
  margin: 0; font-size: 11px; font-weight: 600; letter-spacing: 0.04em;
  text-transform: uppercase; color: var(--muted);
}
.ref-page .ds-facts dd { margin: 0; color: var(--ink-2); }
.ref-page table.vq { width: 100%; }
.ref-page table.vq th, .ref-page table.vq td { vertical-align: top; }
.ref-page table.vq td.num, .ref-page table.vq th.num {
  text-align: right; font-variant-numeric: tabular-nums; white-space: nowrap; width: 7.5rem;
}
.eval-status {
  display: inline-block; font-size: 12px; font-weight: 600; line-height: 1.35;
  padding: 2px 8px; border-radius: 999px; white-space: nowrap;
}
.eval-did { display: block; margin-top: 6px; }
.eval-status.done { background: var(--pale); color: var(--navy); }
.eval-status.part, .eval-status.human { background: var(--warn-bg); color: var(--warn-ink); }
.eval-status.na, .eval-status.none {
  background: var(--surface-2); color: var(--ink-2); border: 1px solid var(--rule);
}

/* -- improved dataset cards -- */
.dataset-card { border: 1px solid var(--rule); }
.dataset-card:hover { border-color: var(--blue); }

/* -- improved portal cards (overview) -- */
.portal-card { padding: 20px; background: var(--surface); border-radius: 10px; border: 1px solid var(--rule); }
.portal-card h2 { margin: 0 0 8px; font-size: 1.05rem; }
.portal-card p { font-size: 14.5px; color: var(--ink-2); max-width: none; }

/* -- improved guide list (downloads) -- */
.guide li { padding: 12px 0; gap: 4px; }
.guide a { font-size: 15px; }

/* -- improved jump nav pills -- */
.jump a { background: var(--surface); }
.jump a:hover { background: var(--pale); border-color: var(--blue); color: var(--blue); }

/* -- improved tabs -- */
.tabs a.active { color: var(--navy); background: var(--pale); font-weight: 600; border-bottom: 2px solid var(--navy); }

@media (max-width: 980px) {
  .process-steps { grid-template-columns: 1fr; }
  .process-step { flex-direction: row; align-items: flex-start; gap: 10px; padding: 11px 14px; border-right: 0; border-bottom: 0; border-left: 3px solid transparent; margin-bottom: 0; }
  .process-step[aria-selected="true"] { border-left-color: var(--navy); border-bottom-color: transparent; }
  .ps-summary { display: none; }
  .process-panel-grid { grid-template-columns: 1fr; }
  .log-metrics { grid-template-columns: 1fr 1fr; }
  .evidence-grid { grid-template-columns: 1fr; }
  .top-nav { display: none; }
  .student-roster { grid-template-columns: 1fr 1fr; }
  .hero, .portal, .metric-row, .dataset-grid, .two, .three, .arch-grid, .cat-grid, .ws-catalogue, .code-grid { grid-template-columns: 1fr; }
  .src-grid { grid-template-columns: 1fr 1fr; }
  .explore-path, .nb-grid, .nb-cohort, .find-grid { grid-template-columns: 1fr 1fr; }
  .hero { gap: 28px; align-items: start; }
  .hero-visual { max-width: 520px; }
  .metric-row { grid-template-columns: 1fr 1fr; }
  .flow { grid-template-columns: 1fr 1fr; }
  .stages-flow { grid-template-columns: 1fr; gap: 0; }
  .stages-flow li { display: grid; grid-template-columns: 28px minmax(0, 1fr); column-gap: 12px; padding-bottom: 20px; }
  .stages-flow .n { grid-column: 1; grid-row: 1; margin: 2px 0 0; }
  .stages-flow h3, .stages-flow p { grid-column: 2; }
  .stages-flow li:not(:last-child)::after { top: 1.15em; bottom: 0; left: 0.35em; right: auto; width: 1px; height: auto; }
  .person-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .thumbs.frame-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (min-width: 1180px) {
  .dataset-card.frame-dataset .ds-desc { white-space: nowrap; }
}
@media (max-width: 720px) {
  main { padding: 20px 16px 72px; }
  .masthead-inner { padding: 0 12px; gap: 8px; }
  .wordmark { font-size: 14px; }
  .burger-label { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }
  .theme-btn { padding: 6px 8px; }
  h1 { font-size: 1.5rem; }
  .hero h1 { font-size: 1.7rem; }
  .metric-row, .flow, .compare, .explore-path, .nb-seq, .nb-grid, .find-grid { grid-template-columns: 1fr; }
  .nb-seq li:not(:last-child)::after { display: none; }
  .nb-grid, .nb-files, .nb-cohort { grid-template-columns: 1fr; }
  .nb-pack-row { align-items: flex-start; flex-direction: column; }
  .log-metrics { grid-template-columns: 1fr; }
  .lead, .log-caption, .lead.log-lead, .page.wide, .log-tech { max-width: 100%; }
  p.span-line { white-space: normal; }
  .log-tech .kv { grid-template-columns: 1fr; gap: 2px 0; }
  .log-tech .kv dt { margin-top: 8px; }
  .log-tech table.log-codes { table-layout: auto; }
  .log-tech table.log-codes th:first-child, .log-tech table.log-codes td:first-child { width: auto; }
  .field-where { white-space: normal; }
  .log-sample-wrap { overflow: visible; }
  table.log-examples { table-layout: auto; }
  table.log-examples thead { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }
  table.log-examples, table.log-examples tbody, table.log-examples tr, table.log-examples td { display: block; width: auto; }
  table.log-examples tr { border: 1px solid var(--rule); border-radius: 12px; margin: 0 0 8px; padding: 8px 12px; background: var(--surface); }
  table.log-examples td { border: 0; padding: 2px 0; }
  table.log-examples td::before { content: attr(data-label); display: block; font-size: 10px; font-weight: 600; letter-spacing: 0.06em; text-transform: uppercase; color: var(--muted); }
  .nb-stages { grid-template-columns: 1fr 1fr; }
  .thumbs, .frame-grid, .thumbs.frame-grid { grid-template-columns: 1fr 1fr; }
  .stat-row { grid-template-columns: 1fr 1fr; }
  .person-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .sess-tabs { grid-template-columns: 1fr; }
  .ws15-grid { grid-template-columns: 1fr; }
  .ws15-foot { align-items: flex-start; flex-wrap: wrap; }
  details.ws > .body { padding-left: 0; }
  .hbar { grid-template-columns: 110px 1fr 40px; }
  .src-grid, .limit-grid { grid-template-columns: 1fr; }
  .ref-page .ds-facts { grid-template-columns: 1fr; gap: 2px; }
  .ref-page .ds-facts dd { margin-bottom: 8px; }
  .finder { flex-direction: column; align-items: stretch; }
  .finder input { min-width: 0; width: 100%; }
  ul.checks { columns: 1; }
  dl.terms { grid-template-columns: 1fr; gap: 2px; }
  dl.terms dd { margin-bottom: 8px; }
  img.mini { width: 64px; }
  .hdr-search { flex-basis: 120px; }
  .student-roster { grid-template-columns: 1fr; }
}
@media (max-width: 1280px) {
  .split { grid-template-columns: 1fr; }
  .detail { position: static; max-height: none; }
}
@media print {
  .masthead, .nav-drawer, .nav-overlay, .filters, .pager, .tabs, .hdr-search { display: none !important; }
  main { padding: 0; }
  body { background: #fff; }
}
@media (forced-colors: active) {
  .strip .tick, .stack > div, .legend i { forced-color-adjust: none; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* ── IA redesign additions ─────────────────────────────────────────── */

/* Guide page section labels */
h3.guide-group-label {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
  margin: 1.5rem 0 0.25rem;
  padding-bottom: 0.25rem;
  border-bottom: 1px solid var(--rule);
}
h3.guide-group-label:first-child { margin-top: 0; }

/* Response viewer tabs (worksheet detail) */
.resp-tabs { display: flex; gap: 6px; margin-bottom: 1rem; flex-wrap: wrap; }

/* Item comparison (expandable per-item response list) */
.item-compare-list { display: flex; flex-direction: column; gap: 6px; }
details.item-compare {
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  background: var(--surface);
}
details.item-compare > summary {
  display: flex; justify-content: space-between; align-items: center;
  padding: 10px 14px;
  cursor: pointer;
  gap: 12px;
  list-style: none;
  font-size: 0.875rem;
}
details.item-compare > summary::-webkit-details-marker { display: none; }
details.item-compare > summary::before {
  content: "▶";
  font-size: 0.6rem;
  color: var(--muted);
  margin-right: 6px;
  flex-shrink: 0;
  transition: transform 0.15s;
}
details.item-compare[open] > summary::before { transform: rotate(90deg); }
.item-compare-label { font-weight: 500; flex: 1; }
.item-compare-score { font-size: 0.8rem; color: var(--muted); white-space: nowrap; }
details.item-compare > div { padding: 0 14px 14px; }
.resp-val {
  display: inline-block;
  background: var(--accent-soft);
  border-radius: 3px;
  padding: 1px 5px;
  font-family: var(--mono);
  font-size: 0.82rem;
  color: var(--ink);
  word-break: break-word;
}

.find-board { width: 100%; min-width: 0; }
.find-tools { width: 100%; min-width: 0; }
.find-board input.find-query {
  display: block; width: 100%; box-sizing: border-box; min-width: 0;
  margin: 0 0 12px;
}
.find-board .ws-filters { width: 100%; max-width: 100%; }
.find-board .find-ws-grid { width: 100%; }
.find-ws-grid { display: grid; grid-template-columns: 1fr; gap: 12px; }
.find-ws {
  display: flex; flex-direction: column; gap: 6px;
  background: var(--surface); border: 1px solid var(--rule); border-radius: 12px;
  padding: 16px 18px; text-decoration: none; color: inherit;
}
.find-ws:hover { border-color: var(--blue); text-decoration: none; color: inherit; }
.find-ws:focus-visible { outline: 2px solid var(--blue); outline-offset: 2px; }
.find-ws .k { font-family: var(--mono); font-size: 12px; color: var(--blue); }
.find-ws h3 { margin: 0; font-size: 1.05rem; }
.find-ws p { margin: 0; color: var(--ink-2); font-size: 14.5px; }
.find-facts { display: grid; grid-template-columns: auto minmax(0, 1fr); gap: 4px 12px; margin: 8px 0 0; }
.find-facts dt { margin: 0; font-size: 12px; color: var(--muted); }
.find-facts dd { margin: 0; font-size: 13px; text-align: right; }
.stat-row.cols-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.find-item { border-top: 1px solid var(--rule); padding: 4px 0; }
.find-item summary { cursor: pointer; }
.find-ws[hidden],
.ws-group[hidden],
.find-person[hidden],
table.find-table tr[hidden] { display: none !important; }
@media (min-width: 860px) {
  .find-ws-grid { grid-template-columns: 1fr 1fr; }
}
.rec-shots { display: grid; grid-template-columns: repeat(auto-fit, minmax(180px, 240px)); gap: 12px; margin: 8px 0 14px; }
.rec-shots figure { margin: 0; }
.rec-shots img { width: 100%; height: auto; border: 1px solid var(--rule); border-radius: 8px; display: block; background: var(--surface-2); }
.rec-shots figcaption { margin-top: 6px; font-size: 12.5px; color: var(--ink-2); line-height: 1.4; }
.run-ribbon { display: flex; height: 18px; gap: 1px; margin: 8px 0 4px; border-radius: 4px; overflow: hidden; background: var(--surface-2); }
.run-ribbon > div { height: 100%; min-width: 2px; }
.beh-line { display: flex; align-items: center; gap: 8px; margin-top: 4px; font-weight: 600; color: var(--ink); }
.beh-line i { width: 28px; height: 4px; border-radius: 2px; flex: 0 0 auto; }
.rec-note { margin: 8px 0 0; }
.find-page .stat-row.find-headline { grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); margin: 8px 0 20px; }
.find-page .find-headline .stat-card { padding: 18px 18px 16px; }
.find-page .find-headline .v { font-size: 2.05rem; letter-spacing: -0.03em; }
.find-page .find-headline .l { margin-top: 8px; font-size: 0.95rem; font-weight: 600; color: var(--ink); }
.find-page .find-headline .small { margin: 6px 0 0; max-width: none; line-height: 1.4; }
.find-people td:first-child { font-weight: 600; }
.find-targets { display: inline-block; max-width: 16rem; white-space: normal; }
.find-kind { display: inline-block; margin-left: 6px; padding: 1px 7px; border: 1px solid var(--rule); border-radius: 99px; font-size: 0.75rem; font-weight: 500; color: var(--muted); vertical-align: 1px; }
.find-dim { border: 1px solid var(--rule); border-radius: 12px; background: var(--surface); padding: 14px 16px 8px; margin: 0 0 12px; }
.find-kicker { margin: 0 0 2px; font-size: 0.78rem; font-weight: 600; letter-spacing: 0.04em; text-transform: uppercase; color: var(--blue); }
.find-dim > h2 { margin: 0 0 6px; font-size: 1.25rem; }
.find-dim > p { margin: 0 0 10px; }
.find-subfold { margin: 8px 0 4px; box-shadow: none; }
.find-board { display: block; margin: 0 0 12px; }
.find-panel { border: 1px solid var(--rule); border-radius: 12px; background: var(--surface); padding: 14px 16px 10px; }
.find-panel h3 { margin: 0 0 8px; font-size: 1rem; }
.find-panel-wide { margin: 0 0 12px; }
.find-panel .small { margin: 8px 0 4px; }
.find-mini { width: 100%; border-collapse: collapse; }
.find-mini th, .find-mini td { padding: 5px 8px 5px 0; font-weight: 500; text-align: left; vertical-align: middle; }
.find-mini td.num, .find-mini th.num { text-align: right; font-variant-numeric: tabular-nums; white-space: nowrap; }
.find-bar { display: inline-block; width: 72px; height: 6px; margin-left: 8px; background: var(--rule); border-radius: 99px; vertical-align: middle; overflow: hidden; }
.find-bar > span { display: block; height: 100%; background: var(--blue); border-radius: 99px; }
.find-notes { margin: 0; padding-left: 1.15rem; }
.find-notes li { margin: 4px 0; }
.find-toggle { background: none; border: 0; padding: 0; color: var(--blue); font: inherit; cursor: pointer; }
.find-toggle:focus-visible { outline: 2px solid var(--blue); outline-offset: 2px; }
.find-extra td { font-weight: 400; background: var(--surface-2, transparent); }
.find-extra p { margin: 0 0 8px; }
.find-check { display: grid; grid-template-columns: 1fr auto; gap: 3px 16px; max-width: 36rem; }
.find-check .st { color: var(--ink-2); font-variant-numeric: tabular-nums; }
.find-check .st-not_found, .find-check .st-undetermined { color: var(--muted); }
.find-scorebar { display: block; width: 72px; height: 5px; margin-top: 5px; margin-left: auto; background: var(--rule); border-radius: 99px; overflow: hidden; }
.find-scorebar > span { display: block; height: 100%; background: var(--blue); border-radius: 99px; }
.find-fold { border: 1px solid var(--rule); border-radius: 12px; background: var(--surface); margin: 16px 0; }
.find-fold > summary {
  cursor: pointer; font-weight: 600; font-size: 1.05rem;
  padding: 14px 16px; list-style: none;
}
.find-fold > summary::-webkit-details-marker { display: none; }
.find-fold > summary::after { content: "Show"; float: right; font-size: 13px; font-weight: 500; color: var(--blue); }
.find-fold[open] > summary::after { content: "Hide"; }
.find-fold-body { padding: 0 16px 8px; }
@media (max-width: 800px) {
  .stat-row.cols-4 { grid-template-columns: 1fr 1fr; }
  .find-page .stat-row.find-headline { grid-template-columns: 1fr 1fr; }
  .find-board { grid-template-columns: 1fr; }
  .find-panel { overflow-x: auto; }
  .find-scorebar { margin-left: 0; }
  table.find-table td.num { text-align: left; padding-right: 0; }
  .find-facts { grid-template-columns: 1fr; }
  .find-facts dd { text-align: left; }
  table.find-table thead { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0; }
  table.find-table, table.find-table tbody, table.find-table tr, table.find-table td { display: block; width: auto; }
  table.find-table tr { border: 1px solid var(--rule); border-radius: 10px; margin: 0 0 10px; padding: 8px 10px; background: var(--surface); }
  table.find-table td { border: 0; padding: 4px 0; }
  table.find-table td::before { content: attr(data-label); display: block; font-size: 11px; font-weight: 600; letter-spacing: 0.04em; text-transform: uppercase; color: var(--muted); }
}
@media (max-width: 560px) {
  .find-page .stat-row.find-headline { grid-template-columns: 1fr; }
}

/* -- student profiles -- */
.profile-page p,
.profile-page .profile-intro,
.profile-page .lead {
  max-width: none;
}
.profile-facts { margin: 0 0 6px; font-weight: 600; color: var(--ink); }
.insight { margin: 0 0 18px; }
.insight h3 { margin: 0 0 6px; font-size: 1.05rem; }
.theme-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 12px 28px; margin: 0 0 8px; }
.theme-grid .insight { margin: 0; }
.profile-notes { margin: 0 0 14px; }
.profile-notes summary { cursor: pointer; font-weight: 600; }
.profile-notes summary:focus-visible { outline: 2px solid var(--blue); outline-offset: 2px; }
.cov-chart { display: grid; gap: 8px; margin: 0 0 8px; }
.cov-row {
  display: grid;
  grid-template-columns: 9.5rem minmax(0, 1fr) auto;
  gap: 10px 12px;
  align-items: center;
}
.cov-name { font-size: 13px; color: var(--ink-2); }
.cov-track {
  display: flex;
  height: 14px;
  min-width: 0;
  background: var(--paper);
  border: 1px solid var(--rule);
  border-radius: 4px;
  overflow: hidden;
}
.cov-track span { display: block; height: 100%; }
.cov-cap { font-size: 13px; color: var(--ink-2); font-variant-numeric: tabular-nums; white-space: nowrap; }
.cov-stack { height: 18px; margin: 0 0 10px; }
.beh-swatch {
  display: inline-block;
  width: 10px;
  height: 10px;
  margin-right: 8px;
  border-radius: 2px;
  vertical-align: -1px;
}
.profile-chart {
  display: block;
  width: 100%;
  max-width: none;
  margin: 0 0 12px;
  background: var(--surface);
  border: 1px solid var(--rule);
}
.profile-req td:nth-child(2) { white-space: nowrap; }
.profile-banner {
  background: var(--surface);
  border: 1px solid var(--rule);
  border-radius: 12px;
  padding: 16px 18px;
  margin: 0 0 16px;
}
.profile-banner p { margin: 0; color: var(--ink-2); }
.profile-page .profile-stats { grid-template-columns: repeat(auto-fit, minmax(180px, 1fr)); }
.profile-patterns {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin: 8px 0 8px;
}
.profile-pattern {
  background: var(--surface);
  border: 1px solid var(--rule);
  border-radius: 12px;
  padding: 16px 18px;
}
.profile-pattern h3 { margin: 0 0 8px; font-size: 1rem; }
.profile-pattern p { margin: 0 0 10px; }
.profile-pattern details { margin: 0 0 8px; }
.profile-pattern summary { cursor: pointer; color: var(--blue); font-weight: 600; }
.profile-pattern summary:focus-visible { outline: 2px solid var(--blue); outline-offset: 2px; }
.profile-legend {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 8px 16px;
  margin: 12px 0;
  padding: 0;
}
.profile-legend li { display: flex; align-items: center; gap: 8px; font-size: 13px; color: var(--ink-2); }
.src-pill {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0;
  background: var(--surface-2, var(--pale));
  color: var(--ink-2);
}
.src-full { background: var(--pale); color: var(--navy); }
.src-part { background: var(--surface); color: var(--ink); border: 1px solid var(--rule-strong); }
.src-report { background: var(--pale); color: var(--navy); }
.src-none { background: transparent; color: var(--muted); border: 1px solid var(--rule); }
.src-pills { list-style: none; margin: 10px 0 0; padding: 0; display: grid; gap: 6px; }
.src-pills li { display: flex; justify-content: space-between; gap: 10px; align-items: center; font-size: 12.5px; color: var(--muted); }
.student-card-sources { margin: 8px 0 0; font-size: 13px; font-weight: 600; color: var(--ink-2); max-width: none; }
.profile-tabs {
  display: flex;
  gap: 8px;
  margin: 8px 0 18px;
  padding: 6px;
  background: var(--surface);
  border: 1px solid var(--rule);
  border-radius: 12px;
}
.profile-tabs a {
  flex: 1 1 140px;
  text-align: center;
  padding: 14px 12px;
  font-size: 16px;
  font-weight: 600;
  border-radius: 8px;
  border-bottom: 0;
}
.profile-tabs a.active {
  background: var(--pale);
  color: var(--navy);
  box-shadow: inset 0 -3px 0 var(--navy);
}
.profile-tabs a:focus-visible { outline: 2px solid var(--blue); outline-offset: 2px; }
.profile-page details.ws > summary {
  grid-template-columns: 76px minmax(0, 1fr) auto 1.2rem;
  padding: 16px 4px;
  gap: 12px 16px;
  align-items: center;
}
.profile-page details.ws > summary .st {
  font-size: 14px;
  font-weight: 600;
  color: var(--ink);
  text-align: right;
}
.profile-page details.ws > summary::after { grid-column: 4; }
.profile-page details.ws > summary:focus-visible { outline: 2px solid var(--blue); outline-offset: 2px; }
.profile-matrix a { text-decoration: none; }
.profile-matrix a:hover { text-decoration: underline; }
.profile-fold > summary::after { content: "Show"; }
.profile-fold[open] > summary::after { content: "Hide"; }
@media (max-width: 800px) {
  .theme-grid { grid-template-columns: 1fr; }
  .cov-row { grid-template-columns: minmax(0, 1fr) auto; }
  .cov-track { grid-column: 1 / -1; }
  .profile-patterns { grid-template-columns: 1fr; }
  .profile-tabs { flex-wrap: wrap; }
  .profile-tabs a { flex: 1 1 45%; }
}
@media (max-width: 560px) {
  .profile-page details.ws > summary { grid-template-columns: 64px minmax(0, 1fr); }
  .profile-page details.ws > summary .st { grid-column: 1 / -1; text-align: left; }
  .profile-page details.ws > summary::after { grid-column: 2; grid-row: 1; justify-self: end; }
  .profile-tabs a { flex: 1 1 100%; }
}